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Groove in the top of the cerebellum
Primary fissure of cerebellum
Upper surface of the cerebellum. (Preclival fissure coloured in red.)
The monticulus of the cerebellum is divided by the primary fissure (or preclival fissure) into an anterior, raised part, the culmen or summit, and a posterior sloped part, the clivus; the quadrangular lobule is similarly divided.
Additional images
Animation. Primary fissure shown in red.
Close up animation. Primary fissure shown in red.
Dissection video (1 min 20 s). Demonstrating the three cerebellar lobes. "V-shaped fissure" is the primary fissure.